// $Id: README 83415 2008-10-23 08:18:15Z johnnyw $

Event Notification Service


File: examples/NotifyService/Messenger/README

This directory contains a simple example of using the Notification Service.

This example extends the Messenger example in GettingStarted directory 
to illustrate how the Notification channel can be used to push messages
from the supplier to the consumer.  Structured events are used to demonstrate
the operation of the channel.  The example uses the push/push model.

The MessengerServer in this example plays the role of a server for
the MessengerClient and the role of a supplier for the MessengerConsumer. 
The flow of messages is shown below:

MessengerClient->MessengerSupplier->NotificationChannel->MessengerConsumer.


The Client code is stored in:

examples/NotifyService/Messenger/MessengerClient.cpp

The Server code is stored in:

examples/NotifyService/Messenger/MessengerServer.cpp

The Consumer code is stored in:

examples/NotifyService/Messenger/MessengerConsumer.cpp


How to Run
----------

To start the Naming Service:
----------------------------
$TAO_ROOT/orbsvcs/Naming_Service/Naming_Service -o ns.ior&

To start the Notification Service:
---------------------------------
$TAO_ROOT/orbsvcs/Notify_Service/Notify_Service -ORBInitRef NameService=file://ns.ior&

To start the server/supplier
----------------------------
./MessengerServer -ORBInitRef NameService=file://ns.ior

To start the consumer
---------------------
./MessengerConsumer -ORBInitRef NameService=file://ns.ior

To start the client
-------------------
./MessengerClient -ORBInitRef NameService=file://ns.ior



Exeuction via Perl Script
-------------------------

A Perl script has been created to automate the steps shown
above.  This script can be run via the following command:

./run_test.pl
